| Abstract: | The Mayfield method was used to estimate the survival rate of 19 radio-marked, female Black Ducks (Anas rubripes) in southcentral Maine during 1977-80. An overall survival rate of 0.74 was estimated for the 121-day monitoring period that included the pre-laying and laying, incubation, brood rearing, and post-rearing stages. No differences in survival rates were detected among these stages. Two instrumented hens were killed by Red-shouldered Hawks (Buteo lineatus) and a third was killed by an unknown predator. We found no evidence that the attachment of radio transmitters affected hen survival. |
| Genre: | Article |
| ProdID: | 5221826 |
| Citation Author: | Ringelman, J.K.; Longcore, J.R. |
| Citation Contributing Office: | Patuxent Wildlife Research Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 65 |
| Citation Issue: | 1 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Canadian Field-Naturalist |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 4 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | 62-65 |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Survival of female black ducks, Anas rubripes, during the breeding season; 1983; Article; Journal; Canadian Field-Naturalist; Ringelman, J.K.; Longcore, J.R. |
| Citation Start Page: | 62 |
| Citation Volume: | 97 |
| Citation Year: | 1983 |
| Type: | citation/reference |
| Text: | Survival of female black ducks, Anas rubripes, during the breeding season; 1983; Article; Journal; Canadian Field-Naturalist; Ringelman, J.K.; Longcore, J.R. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Wed, 16 Jun 2010 12:19 -0500 |
| Publisher: | |
